Copernicium
Transition Metal
Copernicium (Cn) is a chemical element with atomic number 112, classified as a transition metal. At room temperature it is a gas. It was discovered in 1996 by Gesellschaft für Schwerionenforschung (GSI).
Properties
- Atomic number
- 112
- Atomic mass
- 285 u
- Category
- Transition Metal
- Group
- 12
- Period
- 7
- Block
- d-block
- Electron configuration
- [Rn] 5f¹⁴ 6d¹⁰ 7s²
- Phase at STP
- Gas
- Density
- 14 g/L
- Melting point
- —
- Boiling point
- 357 K (83.9 °C)
- Electronegativity
- —
- Atomic radius
- —
- Ionization energy
- —
- Discovery
- 1996 · Gesellschaft für Schwerionenforschung (GSI)
Common uses
Research only
Did you know?
Named after Nicolaus Copernicus and likely a liquid at room temperature.